Noise reduction method and device for in-ear earphone and in-ear earphone

Abstract

The invention discloses a noise reduction method and device for in-ear headphones and the in-ear headphones. It relates to the technical field of sound pickup devices and is used to solve the noise reduction processing of multiple microphones in the prior art. The required acoustic devices, structural space and The problem of excessive algorithm requirements. The method includes: obtaining the signal-to-noise ratio corresponding to the voice signal collected by the microphone connected to the first earphone; determining whether the signal-to-noise ratio is lower than a threshold; if so, based on the voice signal collected by the microphone and the speaker in the first earphone or the second earphone The collected voice signal is used to obtain the noise-reduced voice signal; by reversely utilizing the low-frequency voice signal picked up by the microphone of the in-ear headset, the present invention can not only realize the noise reduction processing of the voice signal in the case of a single microphone, but also save Acoustic devices, structural space and algorithm requirements can further improve the noise reduction processing effect in the case of multiple microphones and improve the user experience.

Description

technical field [0001] The invention relates to the technical field of sound pickup devices, in particular to a noise reduction method and device for an in-ear earphone and the in-ear earphone. Background technique [0002] With the improvement of people's requirements for call quality, noise-canceling microphones (microphones) have become the standard configuration of more and more headphones. In a noisy or windy environment, the noise-cancelling microphone can effectively reduce environmental noise and ensure the quality of voice calls. [0003] In the prior art, it is often adopted to design two or more microphones on the earphone and cooperate with corresponding algorithms to perform noise reduction processing on the picked-up voice signal. However, designing two microphones often conflicts with product appearance and structural space. Even if the appearance permits, designing two microphones will make the structural design more complicated, increase the difficulty of ...

AI Technical Summary

Problems solved by technology

However, designing two microphones often contradicts product appearance and structural space

Even if the appearance permits, designing two microphones will make the structural design more complicated, increase the difficulty of design and assembly, and occupy the speaker (speaker) space

Using two microphones means increased acoustic component cost compared to a single microphone

Moreover, since the position and distance of the two microphones will directly affect the noise reduction effect of the algorithm, the size of wireless headphones such as sports Bluetooth headsets is generally small, and the distance between the two microphones sometimes does not meet the requirements of the algorithm

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